Door/window insertion tools - located inside the new CADwall tool group, choose these tools to insert doors and windows into CADwalls with adjustable size, angle, and style *增加绘制门、窗图形单元

Constrained line option - double-click the CADline tool for options to connect lines or set an angle of constraint. Use the control key after dragging with the CADline tool to constrain it to that angle. *增强了线段编辑功能，比如双击线段工具会弹出窗口 那里可以设置连接线段和设置约束线段角度选项，绘制线段时可以使用Cltr来约束角度等。注：它可以画连续的闭合线段和连接两个不同的两个描点使之闭合。

3-point circle tool - create circles with three defined points *三点画圆法

Resize objects to specified area - use CADtracker's new Area Transform to resize a selected object to a defined area * 面积缩放功能，还有就是物体适合功能，即把一个物体的长宽复制到另一个物体

Offset - the Offset tool now works with linear paths as well as closed objects to create offsets in scale *增加线段偏移工具 还有线段节点增加工具